First we’ll need to ssh into the device
ssh ubnt@192.168.1.20
Next lets open up the config file
vi /tmp/system.cfg
Now search for vlan and replace the vlan id with the appropriate number
In VI you can search by hitting / and then type in vlan
After you have changed all the vlan ids, save the file with esc, wq, enter.
Now we can save the config with
cfgmtd -f /tmp/system.cfg -w && reboot
Update: Found this handy dandy FAQs link https://help.ui.com/hc/en-us/articles/115009192828
Included in the FAQ is a section on “How to Disable Wireless Security on airMAX AC Devices?”
The default security configuration for AC devices since firmware version 8.5.11 was changed to WPA2 AES with a pre-shared key 0000:0000.
Ubiquiti Default AC device WPA2 Preshared key
On Ubiquiti AC radios, you can not disable WPA 2 security through the web interface. This is not necessarily bad, however, what happens if you have a client that is reset and will only connect to the default ubnt SSID?
Fortunately there is a way to disable the WPA2 Preshared key.
sed -i s/aaa.1.wpa.mode=2/aaa.1.wpa.mode=0/g /tmp/system.cfg/usr/etc/rc.d/rc.softrestart saveAfter you are done, you can click the enable button to re-enable Wireless Security.
Note: aaa.1.wpa.mode=2 doesn’t appear to be on all devices. If not, change “wpasupplicant.status=enabled” to “wpasupplicant.status=disabled”
For some reason I ran into an issue where I can not remove authorized SSH Keys in AirOS version 6.3. It redirects to a 404 page and then to the main page.
Thankfully, we can still remove the authorized keys from the command line. For more information on making changes over SSH, refer to the following post.
SSH into radio. Replace username and IP address with your radios user and IP.
ssh ubnt@192.168.1.20
Open up config file
vi /tmp/system.cfg
Search for the lines that contain
the sshd.auth.key and remove them
Save the file and write the configuration with
/usr/etc/rc.d/rc.softrestart save
Once the command completes, you should be good to go.